LibreOffice-Suite-Math/C2/Markup-Language-for-writing-formula-Formula-Formatting/English-timed

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Time Narration
00:00 Welcome to the Spoken tutorial on LibreOffice Math.
00:04 In this tutorial, we will cover the following topics:
00:08 Mark up language for writing formula and formula formatting-Fonts Alignment and Spacing.
00:18 In the last tutorial, we introduced the mark up language for Math.
00:24 Now, let us learn more about Mark up language.
00:28 Let us first open a Writer document and then call the 'Math' application, inside Writer.
00:35 If Writer is already open then click on the Insert menu at the top and then click on Object and choose Formula.
00:46 If Writer is not open, we can invoke it from the Windows Start menu.
00:55 Using the Elements window is a very easy method of writing a formula.
01:01 But directly writing the mark-up language in the Formula Editor is a faster way of writing a formula.
01:10 Because, mark-up language for a formula resembles the way we would read the formula in English.
01:18 For example- to write 4 into 3, we just need to type in the Formula Editor window "4 times 3".
01:28 Before we go to the next example, let us insert a blank line here.
01:36 Simply type the markup "newline" and notice that a new line is inserted in the Writer gray box area.
01:46 Let us type: "Some more example formulae: newline".
01:52 For readability, we will press the Enter key once
01:57 and write: x greater than equal to y.
02:03 Here, we will also number the formula.
02:07 So, we will type: 1. x greater than equal to y new line. Press Enter.
02:18 Notice, the Writer gray-box has refreshed and the contents are centered.
02:25 Next, let us write: a to the power of 10.
02:30 And the markup is: 2. a arrow pointing upward 10 new line and press Enter.
02:42 Notice the mathematical symbol in the Writer gray-box.
02:48 Now, let us write: square root of 16 = 4.
02:55 Type: 3. sqrt 16 within curly brackets equals 4 new line. Press Enter.
03:06 Notice this formula in the Writer gray-box.
03:10 Alright, now let us write a summation symbol for a suffix n, to denote a1 + a2 + a3 so on + an.
03:28 And the markup is: 4. sum a underscore n new line. Press Enter.
03:37 Now, let us try an integral with a function. To write Integral f x dx, the markup is: 5. int f(x) dx newline
03:54 and notice the integral symbol in the Writer area.
04:00 Let us save our work now. Go to File menu at the top, click on Save.
04:09 Name the document as "MathExample1".
04:15 Now, let us learn how to format the formulae we wrote .
04:21 Notice that they are all centered and don’t have a lot of space in between them.
04:28 We can use the Format menu at the top for making various format changes.
04:35 Let us first align all the formulae to the left.
04:40 For this, let us click on Format menu and choose Alignment.
04:46 In the new window, choose the Left option and click on the OK button.
04:54 Notice that the formulae are left aligned now.
04:58 We can change the font style by choosing Fonts under the Format menu.
05:06 Notice the various categories here.
05:10 We can set one type of font for variables, another type for functions, another for numbers and text.
05:23 To modify the font style, click on the Modify button and choose the category Variables.
05:34 Let us choose 'Arial Black' in the list-box and click on the OK button.
05:43 And let us save the font by clicking on the OK button here.
05:50 Now, notice the font changes in the Writer gray-box.
05:56 To increase the font size of the formulae, go to Format menu and click on Font Size .
06:06 Let us increase the Base size to ‘18 point’. Click on OK.
06:16 We can change the relative sizes of other categories such as the text or indexes or operators.
06:25 We can also use the Default button to undo all the font-size changes we made.
06:32 Notice, the font-size changes in the formulae.
06:37 Next, let us make changes to the spacing of the formulae.
06:42 Click on Format menu and choose Spacing.
06:48 Let us change the Spacing, Line spacing and Root spacing, each to 20 percent.
06:56 As we click on each spacing type, the image in the centre shows the location of the spacing type.
07:05 Again, we can choose spacing types from the various categories. To do this, let us click on the Category button.
07:16 Or, use the Default button to undo our changes.
07:22 Let us click on the OK button now.
07:25 And notice the spacing changes in the Writer gray-box.
07:30 More formatting is available in the Elements window.
07:35 Let us bring up the Elements window from the View menu.
07:40 Here, let us click on the last icon in the second row of Categories.
07:47 The tool tip here says ‘Formats’.
07:51 Here, we can choose placements of Subscripts and Superscripts, Alignments, Matrix, New Lines and Gaps.
08:03 Let us introduce a long gap in the fifth example, after the number 5. Click after 5.
08:13 Then from the Elements window, click on Formats > Long Gap.
08:20 The mark up for long gap is the ‘tilde’ character. And for the short gap, it is ‘Tiray’ character.
08:29 Notice the new gap after the number 5.
08:33 So, these are the ways we can format our formulae.
08:38 Feel free to explore all the formatting options which Math provides.
08:44 Okay, here is an assignment for you:
08:47 In the Writer window, write the following formulae using Mark up.
08:53 Use Elements window if necessary.
08:57 Summation of x to the power of 2.
09:02 Sin to the power of x plus cos to the power of x = 1 (use the Functions category in the Elements window).
09:15 Continued from the previous slide, write Summation from 1 to n of x.
09:23 (use the Operators category to set the limits for summation).
09:29 Change font to "Arial" and size to "18" point.
09:35 And provide more spacing between the symbols.
09:40 This brings us to the end of this tutorial on Mark up Language and Formula Formatting in LibreOffice Math.
09:49 To summarize, we learned the following topics:
09:52 Mark up language for writing formula and Formula formatting: Fonts, Alignment and Spacing.
10:01 Spoken Tutorial project is a part of the Talk to a Teacher project, supported by the National Mission on Education through ICT, MHRD, Government of India.
10:14 This project is coordinated by http://spoken-tutorial.org.
10:19 More information on the same is available at the following link.
10:23 This script has been contributed by Priya Suresh, DesiCrew Solutions. And this is Soundharya, DesiCrew solutions, signing off.

Thanks for joining.

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Minal, PoojaMoolya, Pratik kamble, Priyacst, Sandhya.np14